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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG735517685

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG735517685

Diamond specifications and retailer prices

From $370 USD
As of October 27, 2026
Save $1,431 USD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,801 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG735517685 or 735517685. Listed at 21 retailers as of October 27, 2026, with prices from $370 to $1,801, a $1,431 spread on the same certified stone. MOH London lists it at $1,801. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735517685
Dimensions7.76 × 7.76 × 7.37 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.76 mm7.76 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735517685
Side View
Table 60.0%Crown 40.8°Girdle: MED-THKPavilion 36.7°Culet: NoneDepth 57.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,801 USD|Low: $355 USD|High: $1,814 USD|Avg: $825 USD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 13$370 USD
Retailer 5$429 USD
Retailer 6$459 USD
Retailer 14$459 USD
Retailer 9$475 USD
Retailer 11$610 USD
Retailer 4$615 USD
Retailer 7$741 USD
Retailer 10$788 USD
Retailer 2$825 USD
Retailer 8$1,064 USD
Retailer 12$1,345 USD
Retailer 3$1,598 USD
MOH London$1,801 USD

34 data points across 14 retailers

21 retailers$370 USD to $1,801 USD

A
Cheapest Retailer
-
$370 USD
A
Retailer 2
-
$413 USD
View
Final sale: no returns
A
Retailer 3
-
$429 USD
View
A
Retailer 4
-
$459 USD
View
A
Retailer 5
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$459 USD
View
A
Retailer 6
-
$475 USD
£374 GBP
View
A
Retailer 7
-
$610 USD
View
A
Retailer 8
-
$615 USD
View
A
Retailer 9
-
$712 USD
View
A
Retailer 10
-
$741 USD
€706 EUR
View
A
Retailer 11
-
$788 USD
ZAR 12,730 ZAR
View
A
Retailer 12
-
$825 USD
£650 GBP
View
A
Retailer 13
-
$1,041 USD
View
A
Retailer 14
-
$1,064 USD
A$1,637 AUD
View
B+
Retailer 15
-
$1,345 USD
View
B+
Retailer 16
-
$1,472 USD
View
B+
Retailer 17
-
$1,474 USD
View
B+
Retailer 18
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$1,514 USD
View
B+
Retailer 19
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$1,598 USD
View
B
Retailer 20
-
$1,732 USD
View
Most Expensive
B+
MOH London
LG735517685 · Oct 29
$1,801 USD
£1,418 GBP
View
20 more retailers have this diamond
Prices start from $370 USDSave up to $1,431 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Heart
$370 USD